# encoding: utf-8
#
# Redmine - project management software
# Copyright (C) 2006-2013  Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

require 'forwardable'
require 'cgi'

module ApplicationHelper
  include Redmine::I18n
  include GravatarHelper::PublicMethods
  include Redmine::Pagination::Helper
  include AvatarHelper
  ## added by william
  include PraiseTreadHelper

  extend Forwardable
  def_delegators :wiki_helper, :wikitoolbar_for, :heads_for_wiki_formatter

  #Added by young
  #Define the course menu's link class
  # 不是数组的转化成数组，然后判断当前menu_item是否在给定的列表
  # REVIEW: 目测menu的机制，貌似不是很需要转换，再说
  def link_class(label)
    labels = label.is_a?(Array) ? label : ([] << label)
    labels.include?(current_menu_item) ? 'selected' : ''
  end

  #Ended by young
  # Return true if user is authorized for controller/action, otherwise false
  def authorize_for(controller, action)
    User.current.allowed_to?({:controller => controller, :action => action}, @project)
  end

  # Display a link if user is authorized
  #
  # @param [String] name Anchor text (passed to link_to)
  # @param [Hash] options Hash params. This will checked by authorize_for to see if the user is authorized
  # @param [optional, Hash] html_options Options passed to link_to
  # @param [optional, Hash] parameters_for_method_reference Extra parameters for link_to
  def link_to_if_authorized(name, options = {}, html_options = nil, *parameters_for_method_reference)
    link_to(name, options, html_options, *parameters_for_method_reference) if authorize_for(options[:controller] || params[:controller], options[:action])
  end

  # Displays a link to user's account page if active
  def link_to_user(user, options={})
    if user.is_a?(User)
      name = h(user.name(options[:format]))
      if user.active? || (User.current.admin? && user.logged?)
        link_to name, {:controller => 'users', :action => 'show', id: user.id, host: Setting.user_domain}, :class => user.css_classes
      else
        name
      end
    else
      h(user.to_s)
    end
  end

  # Displays a link to +issue+ with its title.
  # Examples:
  #
  #   link_to_issue(issue)                        # => Defect #6: This is the title
  #   link_to_issue(issue, :truncate => 6)        # => Defect #6: This i...
  #   link_to_issue(issue, :title => false)     # => Defect #6
  #   link_to_issue(issue, :project => true)      # => Foo - Defect #6
  #   link_to_issue(issue, :title => false, :tracker => false)     # => #6
  #
  def link_to_issue(issue, options={})
    title = nil
    title = nil
    text = options[:tracker] == false ? "##{issue.id}" : "#{issue.tracker} ##{issue.id}"
    if options[:title] == false
      title = truncate(issue.title, :length => 60)
    else
      title = issue.title
      if options[:truncate]
        title = truncate(title, :length => options[:truncate])
      end
    end
    s = link_to text, issue_path(issue), :class => issue.css_classes, :title => title
    s << h(": #{title}") if title
    s = h("#{issue.project} - ") + s if options[:project]
    s
  end


  # Generates a link to a SCM revision
  # Options:
  # * :text - Link text (default to the formatted revision)
  def link_to_revision(revision, repository, options={})
    if repository.is_a?(Project)
      repository = repository.repository
    end
    text = options.delete(:text) || format_revision(revision)
    rev = revision.respond_to?(:identifier) ? revision.identifier : revision
    link_to(
        h(text),
        {:controller => 'repositories', :action => 'revision', :id => repository.project, :repository_id => repository.identifier_param, :rev => rev},
        :title => l(:label_revision_id, format_revision(revision))
    )
  end

  # Generates a link to a message
  def link_to_message(message, options={}, html_options = nil)
    link_to(
        truncate(message.title, :length => 60),
        board_message_path(message.board_id, message.id, {
            :r => (message.id),
            :anchor => ("message-#{message.id}")
        }.merge(options)),
        html_options
    )
  end

  # Generates a link to a project if active
  # Examples:
  #
  #   link_to_project(project)                          # => link to the specified project overview
  #   link_to_project(project, {:only_path => false}, :class => "project") # => 3rd arg adds html options
  #   link_to_project(project, {}, :class => "project") # => html options with default url (project overview)
  #
  def link_to_project(project, options={}, html_options = nil)
    if project.archived?
      h(project.name)
    elsif options.key?(:action)
      ActiveSupport::Deprecation.warn "#link_to_project with :action option is deprecated and will be removed in Redmine 3.0."
      url = {:controller => 'projects', :action => 'show', :id => project}.merge(options)
      link_to project.name, url, html_options
    else
      link_to project.name, project_path(project, options), html_options
    end
  end

  # Generates a link to a project settings if active
  def link_to_project_settings(project, options={}, html_options=nil)
    if project.active?
      link_to project.name, settings_project_path(project, options), html_options
    elsif project.archived?
      h(project.name)
    else
      link_to project.name, project_path(project, options), html_options
    end
  end

  def wiki_page_path(page, options={})
    url_for({:controller => 'wiki', :action => 'show', :project_id => page.project, :id => page.title}.merge(options))
  end

  def toggle_link(name, id, options={})
    onclick = "$('##{id}').toggle(); "
    onclick << (options[:focus] ? "$('##{options[:focus]}').focus(); " : "this.blur(); ")
    onclick << "return false;"
    link_to(name, "#", :onclick => onclick)
  end

  def image_to_function(name, function, html_options = {})
    html_options.symbolize_keys!
    tag(:input, html_options.merge({
                                       :type => "image", :src => image_path(name),
                                       :onclick => (html_options[:onclick] ? "#{html_options[:onclick]}; " : "") + "#{function};"
                                   }))
  end

  def format_activity_title(text)
    h(truncate_single_line(text, :length => 100))
  end

  def format_activity_day(date)
    date == User.current.today ? l(:label_today).titleize : format_date(date)
  end

  def format_activity_description(text)
    h(truncate(text.to_s, :length => 120).gsub(%r{[\r\n]*<(pre|code)>.*$}m, '...')
    ).gsub(/[\r\n]+/, "<br />").html_safe
  end

  def format_version_name(version)
    if version.project == @project
      h(version)
    else
      h("#{version.project} - #{version}")
    end
  end

  def due_date_distance_in_words(date)
    if date
      l((date < Date.today ? :label_roadmap_overdue : :label_roadmap_due_in), distance_of_date_in_words(Date.today, date))
    end
  end

  # Renders a tree of projects as a nested set of unordered lists
  # The given collection may be a subset of the whole project tree
  # (eg. some intermediate nodes are private and can not be seen)
  #Modified by nie.
  def render_project_nested_lists(projects)
    s = ''
    if projects.any?
      ancestors = []
      original_project = @project
      #modified  by nie
      projects.each do |project|
        # set the project environment to please macros.
        @project = project
        if (ancestors.empty? || project.is_descendant_of?(ancestors.last))
#          s << "<ul class='projects #{ ancestors.empty? ? 'root' : nil}'>\n"
          s << "<ul class='projects'>\n"
        else
          ancestors.pop
          s << "</li>"
          while (ancestors.any? && !project.is_descendant_of?(ancestors.last))
            ancestors.pop
            s << "</ul></li>\n"
          end
        end
        classes = (ancestors.empty? ? 'root' : 'child')
        s << "<li class='project-table'><div class='#{classes}'>"
        if project.try(:project_type) == Project::ProjectType_project
          s << h(block_given? ? yield(project) : project.name)
        else
        end

        if project.try(:project_type) == Project::ProjectType_project
          unless User.current.member_of?(@project)
            s << "<span style = 'float: right;'>"
            s << watcher_link(@project, User.current) #, ['whiteButton'])
            s << "</span>"
          end
          s << (render :partial => 'projects/project', :locals => {:project => project}).to_s
        else
          s << (render :partial => 'projects/course', :locals => {:project => project}).to_s
        end
        s << "</div>\n"
        ancestors << project
      end
      s << ("</li></ul>\n" * ancestors.size)
      @project = original_project
    end
    s.html_safe
  end

  #added by young
  def render_project_nested_lists_new(projects)
    s = ''
    if projects.any?
      ancestors = []
      original_project = @project
      projects.sort_by(&:lft).each do |project|
        # set the project environment to please macros.
        @project = project
        if (ancestors.empty? || project.is_descendant_of?(ancestors.last))
#          s << "<ul class='projects #{ ancestors.empty? ? 'root' : nil}'>\n"
          s << "<ul class='projects'>\n"
        else
          ancestors.pop
          s << "</li>"
          while (ancestors.any? && !project.is_descendant_of?(ancestors.last))
            ancestors.pop
            s << "</ul></li>\n"
          end
        end
        classes = (ancestors.empty? ? 'root' : 'child')
        s << h(block_given? ? yield(project) : project.name)
        ancestors << project
      end
      s << ("</li></ul>\n" * ancestors.size)
      @project = original_project
    end
    s.html_safe
  end

  #end
  def render_page_hierarchy(pages, node=nil, options={})
    content = ''
    if pages[node]
      content << "<ul class=\"pages-hierarchy\">\n"
      pages[node].each do |page|
        content << "<li>"
        content << link_to(h(page.pretty_title), {:controller => 'wiki', :action => 'show', :project_id => page.project, :id => page.title, :version => nil},
                           :title => (options[:timestamp] && page.updated_on ? l(:label_updated_time, distance_of_time_in_words(Time.now, page.updated_on)) : nil))
        content << "\n" + render_page_hierarchy(pages, page.id, options) if pages[page.id]
        content << "</li>\n"
      end
      content << "</ul>\n"
    end
    content.html_safe
  end

  # Renders flash messages
  def render_flash_messages
    s = ''
    flash.each do |k, v|
      s << content_tag('div', v.html_safe, :class => "flash #{k}", :id => "flash_#{k}")
    end
    s.html_safe
  end

  # Renders tabs and their content
  def render_tabs(tabs)
    if tabs.any?
      render :partial => 'common/tabs', :locals => {:tabs => tabs}
    else
      content_tag 'p', l(:label_no_data), :class => "nodata"
    end
  end

  # Renders the project quick-jump box
  def render_project_jump_box
    return unless User.current.logged?
    projects = User.current.memberships.collect(&:project).compact.select(&:active?).uniq
    if projects.any?
      options =
          ("<option value=''>#{ l(:label_jump_to_a_project) }</option>" +
              '<option value="" disabled="disabled">---</option>').html_safe

      options << project_tree_options_for_select(projects, :selected => @project) do |p|
        {:value => project_path(:id => p, :jump => current_menu_item)}
      end

      select_tag('project_quick_jump_box', options, :onchange => 'if (this.value != \'\') { window.location = this.value; }')
    end
  end

  def project_tree_options_for_select(projects, options = {})
    s = ''
    project_tree(projects) do |project, level|
      name_prefix = (level > 0 ? '&nbsp;' * 2 * level + '&#187; ' : '').html_safe
      tag_options = {:value => project.id}
      if project == options[:selected] || (options[:selected].respond_to?(:include?) && options[:selected].include?(project))
        tag_options[:selected] = 'selected'
      else
        tag_options[:selected] = nil
      end
      tag_options.merge!(yield(project)) if block_given?
      s << content_tag('option', name_prefix + h(project), tag_options)
    end
    s.html_safe
  end

  # Yields the given block for each project with its level in the tree
  #
  # Wrapper for Project#project_tree
  def project_tree(projects, &block)
    Project.project_tree(projects, &block)
  end

  def principals_check_box_tags(name, principals)
    s = ''
    principals.each do |principal|
      s << "<label>#{ check_box_tag name, principal.id, false, :id => nil } #{h principal}</label>\n"
    end
    s.html_safe
  end

  #扩展的checkbox生成
  def principals_check_box_tags_ex(name, principals)
    s = ''
    principals.each do |principal|
      s << "<label>#{ check_box_tag name, principal.id, false, :id => nil } #{h principal.userInfo }</label>\n"
    end
    s.html_safe
  end

  # Options for the new membership projects combo-box
  def options_for_membership_project_select(principal, projects)
    options = content_tag('option', "--- #{l(:actionview_instancetag_blank_option)} ---")
    options << project_tree_options_for_select(projects) do |p|
      {:disabled => principal.projects.to_a.include?(p)}
    end
    options
  end

  # Truncates and returns the string as a single line
  def truncate_single_line(string, *args)
    truncate(string.to_s, *args).gsub(%r{[\r\n]+}m, ' ')
  end

  # Truncates at line break after 250 characters or options[:length]
  def truncate_lines(string, options={})
    length = options[:length] || 250
    if string.to_s =~ /\A(.{#{length}}.*?)$/m
      "#{$1}..."
    else
      string
    end
  end

  def anchor(text)
    text.to_s.gsub(' ', '_')
  end

  def html_hours(text)
    text.gsub(%r{(\d+)\.(\d+)}, '<span class="hours hours-int">\1</span><span class="hours hours-dec">.\2</span>').html_safe
  end

  def authoring(created, author, options={})
    l(options[:label] || :label_added_time_by, :author => link_to_user(author), :age => time_tag(created)).html_safe
  end

  def added_time(created)
    l(:label_added_time, :age => time_tag(created)).html_safe
  end

  def user_url_and_time(user_name, user_url, created)

    unless user_name.nil? || user_name == ''
      if user_url.nil?||user_url==''
        l(:label_added_time_by, :author => link_to(user_name), :age => time_tag(created)).html_safe
      else
        l(:label_added_time_by, :author => link_to(user_name, user_url), :age => time_tag(created)).html_safe
      end
    else
      l(:label_added_time, :age => time_tag(created)).html_safe
    end
  end

  #huang
  def betweentime(enddate)
    ss=(DateTime.parse("#{enddate.to_date}")-DateTime.parse("#{DateTime.now.to_date}")).to_i
    return ss
  end

  def time_tag(time)
    if time.nil?
      time = Time.parse "2005-10-22 15:00:22"
    end
    text = distance_of_time_in_words(Time.now, time)

    if @project
      link_to(text, {:controller => 'activities', :action => 'index', :id => @project, :from => User.current.time_to_date(time)}, :title => format_time(time))
    else
      content_tag('acronym', text, :title => format_time(time))
    end
  end

  def syntax_highlight_lines(name, content)
    lines = []
    syntax_highlight(name, content).each_line { |line| lines << line }
    lines
  end

  def syntax_highlight(name, content)
    Redmine::SyntaxHighlighting.highlight_by_filename(content, name)
  end

  def to_path_param(path)
    str = path.to_s.split(%r{[/\\]}).select { |p| !p.blank? }.join("/")
    str.blank? ? nil : str
  end

  def reorder_links(name, url, method = :post)
    link_to(image_tag('2uparrow.png', :alt => l(:label_sort_highest)),
            url.merge({"#{name}[move_to]" => 'highest'}),
            :method => method, :title => l(:label_sort_highest)) +
        link_to(image_tag('1uparrow.png', :alt => l(:label_sort_higher)),
                url.merge({"#{name}[move_to]" => 'higher'}),
                :method => method, :title => l(:label_sort_higher)) +
        link_to(image_tag('1downarrow.png', :alt => l(:label_sort_lower)),
                url.merge({"#{name}[move_to]" => 'lower'}),
                :method => method, :title => l(:label_sort_lower)) +
        link_to(image_tag('2downarrow.png', :alt => l(:label_sort_lowest)),
                url.merge({"#{name}[move_to]" => 'lowest'}),
                :method => method, :title => l(:label_sort_lowest))
  end

  def breadcrumb(*args)
    elements = args.flatten
    elements.any? ? content_tag('p', (args.join(" \xc2\xbb ") + " \xc2\xbb ").html_safe, :class => 'breadcrumb') : nil
  end

  def other_formats_links(&block)
    concat('<p class="other-formats">'.html_safe + l(:label_export_to))
    yield Redmine::Views::OtherFormatsBuilder.new(self)
    concat('</p>'.html_safe)
  end

  def page_header_title
    if @project.nil? || @project.new_record?
      h(Setting.app_title)
    else
      b = []
      ancestors = (@project.root? ? [] : @project.ancestors.visible.all)
      if ancestors.any?
        root = ancestors.shift
        b << link_to_project(root, {:jump => current_menu_item}, :class => 'root')
        if ancestors.size > 2
          b << "\xe2\x80\xa6"
          ancestors = ancestors[-2, 2]
        end
        b += ancestors.collect { |p| link_to_project(p, {:jump => current_menu_item}, :class => 'ancestor') }
      end
      b << h(@project)
      b.join(" \xc2\xbb ").html_safe
    end
  end

  def html_title(*args)
    if args.empty?
      title = @html_title || []
      title << @open_source_project.name if @open_source_project
      title << Setting.app_title unless Setting.app_title == title.last
      title.select { |t| !t.blank? }.join(' - ')
    else
      @html_title ||= []
      @html_title += args
    end
  end

  # Returns the theme, controller name, and action as css classes for the
  # HTML body.
  def body_css_classes
    css = []
    if theme = Redmine::Themes.theme(Setting.ui_theme)
      css << 'theme-' + theme.name
    end

    css << 'controller-' + controller_name
    css << 'action-' + action_name
    css.join(' ')
  end

  def accesskey(s)
    @used_accesskeys ||= []
    key = Redmine::AccessKeys.key_for(s)
    return nil if @used_accesskeys.include?(key)
    @used_accesskeys << key
    key
  end


  def parse_non_pre_blocks(text, obj, macros)
    s = StringScanner.new(text)
    tags = []
    parsed = ''
    while !s.eos?
      s.scan(/(.*?)(<(\/)?(pre|code)(.*?)>|\z)/im)
      text, full_tag, closing, tag = s[1], s[2], s[3], s[4]
      if tags.empty?
        yield text
        inject_macros(text, obj, macros) if macros.any?
      else
        inject_macros(text, obj, macros, false) if macros.any?
      end
      parsed << text
      if tag
        if closing
          if tags.last == tag.downcase
            tags.pop
          end
        else
          tags << tag.downcase
        end
        parsed << full_tag
      end
    end
    # Close any non closing tags
    while tag = tags.pop
      parsed << "</#{tag}>"
    end
    parsed
  end


  # Wiki links
  #
  # Examples:
  #   [[mypage]]
  #   [[mypage|mytext]]
  # wiki links can refer other project wikis, using project name or identifier:
  #   [[project:]] -> wiki starting page
  #   [[project:|mytext]]
  #   [[project:mypage]]
  #   [[project:mypage|mytext]]
  def parse_wiki_links(text, project, obj, attr, only_path, options)
    text.gsub!(/(!)?(\[\[([^\]\n\|]+)(\|([^\]\n\|]+))?\]\])/) do |m|
      link_project = project
      esc, all, page, title = $1, $2, $3, $5
      if esc.nil?
        if page =~ /^([^\:]+)\:(.*)$/
          identifier, page = $1, $2
          link_project = Project.find_by_identifier(identifier) || Project.find_by_name(identifier)
          title ||= identifier if page.blank?
        end

        if link_project && link_project.wiki
          # extract anchor
          anchor = nil
          if page =~ /^(.+?)\#(.+)$/
            page, anchor = $1, $2
          end
          anchor = sanitize_anchor_name(anchor) if anchor.present?
          # check if page exists
          wiki_page = link_project.wiki.find_page(page)
          url = if anchor.present? && wiki_page.present? && (obj.is_a?(WikiContent) || obj.is_a?(WikiContent::Version)) && obj.page == wiki_page
                  "##{anchor}"
                else
                  case options[:wiki_links]
                    when :local;
                      "#{page.present? ? Wiki.titleize(page) : ''}.html" + (anchor.present? ? "##{anchor}" : '')
                    when :anchor;
                      "##{page.present? ? Wiki.titleize(page) : title}" + (anchor.present? ? "_#{anchor}" : '') # used for single-file wiki export
                    else
                      wiki_page_id = page.present? ? Wiki.titleize(page) : nil
                      parent = wiki_page.nil? && obj.is_a?(WikiContent) && obj.page && project == link_project ? obj.page.title : nil
                      url_for(:only_path => only_path, :controller => 'wiki', :action => 'show', :project_id => link_project,
                              :id => wiki_page_id, :version => nil, :anchor => anchor, :parent => parent)
                  end
                end
          link_to(title.present? ? title.html_safe : h(page), url, :class => ('wiki-page' + (wiki_page ? '' : ' new')))
        else
          # project or wiki doesn't exist
          all
        end
      else
        all
      end
    end
  end

  def select_option_helper option
    tmp = Hash.new
    tmp={"" => ""}
    option.each do |project|
      tmp[project.name] = project.id
    end
    tmp
  end

  # Redmine links
  #
  # Examples:
  #   Issues:
  #     #52 -> Link to issue #52
  #   Changesets:
  #     r52 -> Link to revision 52
  #     commit:a85130f -> Link to scmid starting with a85130f
  #   Documents:
  #     document#17 -> Link to document with id 17
  #     document:Greetings -> Link to the document with title "Greetings"
  #     document:"Some document" -> Link to the document with title "Some document"
  #   Versions:
  #     version#3 -> Link to version with id 3
  #     version:1.0.0 -> Link to version named "1.0.0"
  #     version:"1.0 beta 2" -> Link to version named "1.0 beta 2"
  #   Source files:
  #     source:some/file -> Link to the file located at /some/file in the project's repository
  #     source:some/file@52 -> Link to the file's revision 52
  #     source:some/file#L120 -> Link to line 120 of the file
  #     source:some/file@52#L120 -> Link to line 120 of the file's revision 52
  #     export:some/file -> Force the download of the file
  #   Forum messages:
  #     message#1218 -> Link to message with id 1218
  #
  #   Links can refer other objects from other projects, using project identifier:
  #     identifier:r52
  #     identifier:document:"Some document"
  #     identifier:version:1.0.0
  #     identifier:source:some/file

  HEADING_RE = /(<h(\d)( [^>]+)?>(.+?)<\/h(\d)>)/i unless const_defined?(:HEADING_RE)

  def parse_sections(text, project, obj, attr, only_path, options)
    return unless options[:edit_section_links]
    text.gsub!(HEADING_RE) do
      heading = $1
      @current_section += 1
      if @current_section > 1
        content_tag('div',
                    link_to(image_tag('edit.png'), options[:edit_section_links].merge(:section => @current_section)),
                    :class => 'contextual',
                    :title => l(:button_edit_section)) + heading.html_safe
      else
        heading
      end
    end
  end

  # Headings and TOC
  # Adds ids and links to headings unless options[:headings] is set to false
  def parse_headings(text, project, obj, attr, only_path, options)
    return if options[:headings] == false

    text.gsub!(HEADING_RE) do
      level, attrs, content = $2.to_i, $3, $4
      item = strip_tags(content).strip
      anchor = sanitize_anchor_name(item)
      # used for single-file wiki export
      anchor = "#{obj.page.title}_#{anchor}" if options[:wiki_links] == :anchor && (obj.is_a?(WikiContent) || obj.is_a?(WikiContent::Version))
      @heading_anchors[anchor] ||= 0
      idx = (@heading_anchors[anchor] += 1)
      if idx > 1
        anchor = "#{anchor}-#{idx}"
      end
      @parsed_headings << [level, anchor, item]
      "<a name=\"#{anchor}\"></a>\n<h#{level} #{attrs}>#{content}<a href=\"##{anchor}\" class=\"wiki-anchor\">&para;</a></h#{level}>"
    end
  end

  MACROS_RE = /(
                (!)?                        # escaping
                (
                \{\{                        # opening tag
                ([\w]+)                     # macro name
                (\(([^\n\r]*?)\))?          # optional arguments
                ([\n\r].*?[\n\r])?          # optional block of text
                \}\}                        # closing tag
                )
               )/mx unless const_defined?(:MACROS_RE)

  MACRO_SUB_RE = /(
                  \{\{
                  macro\((\d+)\)
                  \}\}
                  )/x unless const_defined?(:MACRO_SUB_RE)

  # Extracts macros from text
  def catch_macros(text)
    macros = {}
    text.gsub!(MACROS_RE) do
      all, macro = $1, $4.downcase
      if macro_exists?(macro) || all =~ MACRO_SUB_RE
        index = macros.size
        macros[index] = all
        "{{macro(#{index})}}"
      else
        all
      end
    end
    macros
  end

  # Executes and replaces macros in text
  def inject_macros(text, obj, macros, execute=true)
    text.gsub!(MACRO_SUB_RE) do
      all, index = $1, $2.to_i
      orig = macros.delete(index)
      if execute && orig && orig =~ MACROS_RE
        esc, all, macro, args, block = $2, $3, $4.downcase, $6.to_s, $7.try(:strip)
        if esc.nil?
          h(exec_macro(macro, obj, args, block) || all)
        else
          h(all)
        end
      elsif orig
        h(orig)
      else
        h(all)
      end
    end
  end

  TOC_RE = /<p>\{\{([<>]?)toc\}\}<\/p>/i unless const_defined?(:TOC_RE)

  # Renders the TOC with given headings
  def replace_toc(text, headings)
    text.gsub!(TOC_RE) do
      # Keep only the 4 first levels
      headings = headings.select { |level, anchor, item| level <= 4 }
      if headings.empty?
        ''
      else
        div_class = 'toc'
        div_class << ' right' if $1 == '>'
        div_class << ' left' if $1 == '<'
        out = "<ul class=\"#{div_class}\"><li>"
        root = headings.map(&:first).min
        current = root
        started = false
        headings.each do |level, anchor, item|
          if level > current
            out << '<ul><li>' * (level - current)
          elsif level < current
            out << "</li></ul>\n" * (current - level) + "</li><li>"
          elsif started
            out << '</li><li>'
          end
          out << "<a href=\"##{anchor}\">#{item}</a>"
          current = level
          started = true
        end
        out << '</li></ul>' * (current - root)
        out << '</li></ul>'
      end
    end
  end

  # Same as Rails' simple_format helper without using paragraphs
  def simple_format_without_paragraph(text)
    text.to_s.
        gsub(/\r\n?/, "\n").# \r\n and \r -> \n
        gsub(/\n\n+/, "<br /><br />").# 2+ newline  -> 2 br
        gsub(/([^\n]\n)(?=[^\n])/, '\1<br />').# 1 newline   -> br
        html_safe
  end

  def lang_options_for_select(blank=true)
    {'Chinese简体中文 ' => 'zh', :English => :en}
  end

  def label_tag_for(name, option_tags = nil, options = {})
    label_text = l(("field_"+field.to_s.gsub(/\_id$/, "")).to_sym) + (options.delete(:required) ? @template.content_tag("span", " *", :class => "required") : "")
    content_tag("label", label_text)
  end

  def labelled_form_for(*args, &proc)
    args << {} unless args.last.is_a?(Hash)
    options = args.last
    if args.first.is_a?(Symbol)
      options.merge!(:as => args.shift)
    end
    options.merge!({:builder => Redmine::Views::LabelledFormBuilder})
    form_for(*args, &proc)
  end

  def labelled_fields_for(*args, &proc)
    args << {} unless args.last.is_a?(Hash)
    options = args.last
    options.merge!({:builder => Redmine::Views::LabelledFormBuilder})
    fields_for(*args, &proc)
  end

  def labelled_remote_form_for(*args, &proc)
    ActiveSupport::Deprecation.warn "ApplicationHelper#labelled_remote_form_for is deprecated and will be removed in Redmine 2.2."
    args << {} unless args.last.is_a?(Hash)
    options = args.last
    options.merge!({:builder => Redmine::Views::LabelledFormBuilder, :remote => true})
    form_for(*args, &proc)
  end

  def error_messages_for(*objects)
    html = ""
    # modified by fq
    if objects.first.is_a?(Array)
      objects = objects.first
    end
    # end
    objects = objects.map { |o| o.is_a?(String) ? instance_variable_get("@#{o}") : o }.compact
    errors = objects.map { |o| o.errors.full_messages }.flatten
    if errors.any?
      html << "<div id='errorExplanation'><ul>\n"
      errors.each do |error|
        ###by xianbo
        if (error!=l(:label_repository_path_not_null))
          html << "<li>#{h error}</li>\n"
        end
        ###xianbo
      end
      ###by xianbo
      unless params[:repository].nil?
        if params[:repository][:upassword]==""
          html << "<li>"+ l(:label_password_not_null) +"</li>\n"
        end
      end
      ###xianbo
      html << "</ul></div>\n"
    end
    html.html_safe
  end

  def delete_link(url, options={})
    options = {
        :method => :delete,
        :data => {:confirm => l(:text_are_you_sure)},
        :class => 'icon icon-del'
    }.merge(options)

    link_to l(:button_delete), url, options
  end

  def preview_link(url, form, target='preview', options={})
    content_tag 'a', l(:label_preview), {
        :href => "#",
        :onclick => %|submitPreview("#{escape_javascript url_for(url)}", "#{escape_javascript form}", "#{escape_javascript target}"); return false;|,
        :accesskey => accesskey(:preview)
    }.merge(options)
  end

  def link_to_function(name, function, html_options={})
    content_tag(:a, name, {:href => '#', :onclick => "#{function}; return false;"}.merge(html_options))
  end

  # Helper to render JSON in views
  def raw_json(arg)
    arg.to_json.to_s.gsub('/', '\/').html_safe
  end

  def back_url
    url = params[:back_url]
    if url.nil? && referer = request.env['HTTP_REFERER']
      url = CGI.unescape(referer.to_s)
    end
    url
  end

  def back_url_hidden_field_tag
    url = back_url
    hidden_field_tag('back_url', url, :id => nil) unless url.blank?
  end

  def check_all_links(form_name)
    link_to_function(l(:button_check_all), "checkAll('#{form_name}', true)") +
        " | ".html_safe +
        link_to_function(l(:button_uncheck_all), "checkAll('#{form_name}', false)")
  end

  def progress_bar(pcts, options={})
    pcts = [pcts, pcts] unless pcts.is_a?(Array)
    pcts = pcts.collect(&:round)
    pcts[1] = pcts[1] - pcts[0]
    pcts << (100 - pcts[1] - pcts[0])
    width = options[:width] || '100px;'
    legend = options[:legend] || ''
    content_tag('table',
                content_tag('tr',
                            (pcts[0] > 0 ? content_tag('td', '', :style => "width: #{pcts[0]}%;", :class => 'closed') : ''.html_safe) +
                                (pcts[1] > 0 ? content_tag('td', '', :style => "width: #{pcts[1]}%;", :class => 'done') : ''.html_safe) +
                                (pcts[2] > 0 ? content_tag('td', '', :style => "width: #{pcts[2]}%;", :class => 'todo') : ''.html_safe)
                ), :class => 'progress', :style => "width: #{width};").html_safe +
        content_tag('p', legend, :class => 'percent').html_safe
  end

  def checked_image(checked=true)
    if checked
      image_tag 'toggle_check.png'
    end
  end

  def context_menu(url)
    unless @context_menu_included
      content_for :header_tags do
        javascript_include_tag('context_menu') +
            stylesheet_link_tag('context_menu')
      end
      if l(:direction) == 'rtl'
        content_for :header_tags do
          stylesheet_link_tag('context_menu_rtl')
        end
      end
      @context_menu_included = true
    end
    javascript_tag "contextMenuInit('#{ url_for(url) }')"
  end

  def calendar_for(field_id)
    include_calendar_headers_tags
    javascript_tag("$(function() { $('##{field_id}').datepicker(datepickerOptions); });")
  end

  def include_calendar_headers_tags
    unless @calendar_headers_tags_included
      @calendar_headers_tags_included = true
      content_for :header_tags do
        start_of_week = Setting.start_of_week
        start_of_week = l(:general_first_day_of_week, :default => '1') if start_of_week.blank?
        # Redmine uses 1..7 (monday..sunday) in settings and locales
        # JQuery uses 0..6 (sunday..saturday), 7 needs to be changed to 0
        start_of_week = start_of_week.to_i % 7

        tags = javascript_tag(
            "var datepickerOptions={dateFormat: 'yy-mm-dd', firstDay: #{start_of_week}, " +
                "showOn: 'button', buttonImageOnly: true, buttonImage: '" +
                path_to_image('/images/calendar.png') +
                "', showButtonPanel: true, showWeek: true, showOtherMonths: true, selectOtherMonths: true};")
        jquery_locale = l('jquery.locale', :default => current_language.to_s)
        unless jquery_locale == 'en'
          tags << javascript_include_tag("i18n/jquery.ui.datepicker-#{jquery_locale}.js")
        end
        tags
      end
    end
  end

  # Overrides Rails' stylesheet_link_tag with themes and plugins support.
  # Examples:
  #   stylesheet_link_tag('styles') # => picks styles.css from the current theme or defaults
  #   stylesheet_link_tag('styles', :plugin => 'foo) # => picks styles.css from plugin's assets
  #
  def stylesheet_link_tag(*sources)
    options = sources.last.is_a?(Hash) ? sources.pop : {}
    plugin = options.delete(:plugin)
    sources = sources.map do |source|
      if plugin
        "/plugin_assets/#{plugin}/stylesheets/#{source}"
      elsif current_theme && current_theme.stylesheets.include?(source)
        current_theme.stylesheet_path(source)
      else
        source
      end
    end
    super sources, options
  end

  # Overrides Rails' image_tag with themes and plugins support.
  # Examples:
  #   image_tag('image.png') # => picks image.png from the current theme or defaults
  #   image_tag('image.png', :plugin => 'foo) # => picks image.png from plugin's assets
  #
  def image_tag(source, options={})
    if plugin = options.delete(:plugin)
      source = "/plugin_assets/#{plugin}/images/#{source}"
    elsif current_theme && current_theme.images.include?(source)
      source = current_theme.image_path(source)
    end
    super source, options
  end

  # Overrides Rails' javascript_include_tag with plugins support
  # Examples:
  #   javascript_include_tag('scripts') # => picks scripts.js from defaults
  #   javascript_include_tag('scripts', :plugin => 'foo) # => picks scripts.js from plugin's assets
  #
  def javascript_include_tag(*sources)
    options = sources.last.is_a?(Hash) ? sources.pop : {}
    if plugin = options.delete(:plugin)
      sources = sources.map do |source|
        if plugin
          "/plugin_assets/#{plugin}/javascripts/#{source}"
        else
          source
        end
      end
    end
    super sources, options
  end

  def content_for(name, content = nil, &block)
    @has_content ||= {}
    @has_content[name] = true
    super(name, content, &block)
  end

  def has_content?(name)
    (@has_content && @has_content[name]) || false
  end

  def sidebar_content?
    has_content?(:sidebar) || view_layouts_base_sidebar_hook_response.present?
  end

  def view_layouts_base_sidebar_hook_response
    @view_layouts_base_sidebar_hook_response ||= call_hook(:view_layouts_base_sidebar)
  end

  def email_delivery_enabled?
    !!ActionMailer::Base.perform_deliveries
  end

  # Returns the avatar image tag for the given +user+ if avatars are enabled
  # +user+ can be a User or a string that will be scanned for an email address (eg. 'joe <joe@foo.bar>')
  def avatar(user, options = {})
    if Setting.gravatar_enabled?
      options.merge!({:ssl => (request && request.ssl?), :default => Setting.gravatar_default})
      email = nil
      if user.respond_to?(:mail)
        email = user.mail
      elsif user.to_s =~ %r{<(.+?)>}
        email = $1
      end
      return gravatar(email.to_s.downcase, options) unless email.blank? rescue nil
    else
      ''
    end
  end

  def sanitize_anchor_name(anchor)
    if ''.respond_to?(:encoding) || RUBY_PLATFORM == 'java'
      anchor.gsub(%r{[^\s\-\p{Word}]}, '').gsub(%r{\s+(\-+\s*)?}, '-')
    else
      # TODO: remove when ruby1.8 is no longer supported
      anchor.gsub(%r{[^\w\s\-]}, '').gsub(%r{\s+(\-+\s*)?}, '-')
    end
  end

  # Returns the javascript tags that are included in the html layout head
  def javascript_heads
    tags = javascript_include_tag('jquery-1.8.3-ui-1.9.2-ujs-2.0.3', 'application')
    tags
  end

  def hubspot_head
    tags = javascript_include_tag('hubspot/messenger.min', 'hubspot/messenger-theme-future')
    tags << stylesheet_link_tag('hubspot/messenger', 'hubspot/messenger-theme-future', 'hubspot/messenger-theme-flat')
  end

  def bootstrap_head
    tags = stylesheet_link_tag('bootstrap/bootstrap.min', 'bootstrap/bootstrap-theme.min')
    tags << javascript_include_tag('bootstrap/affix')
    tags << javascript_include_tag('bootstrap/alert')
    tags << javascript_include_tag('bootstrap/button')
    tags << javascript_include_tag('bootstrap/carousel')
    tags << javascript_include_tag('bootstrap/collapse')
    tags << javascript_include_tag('bootstrap/dropdown')
    tags << javascript_include_tag('bootstrap/modal')
    tags << javascript_include_tag('bootstrap/popover')
    tags << javascript_include_tag('bootstrap/scrollspy')
    tags << javascript_include_tag('bootstrap/tab')
    tags << javascript_include_tag('bootstrap/tooltip')
    tags << javascript_include_tag('bootstrap/transition')
    tags
  end

  def favicon
    "<link rel='shortcut icon' href='#{image_path('/favicon.ico')}' />".html_safe
  end

  def robot_exclusion_tag
    '<meta name="robots" content="noindex,follow,noarchive" />'.html_safe
  end

  # Returns true if arg is expected in the API response
  def include_in_api_response?(arg)
    unless @included_in_api_response
      param = params[:include]
      @included_in_api_response = param.is_a?(Array) ? param.collect(&:to_s) : param.to_s.split(',')
      @included_in_api_response.collect!(&:strip)
    end
    @included_in_api_response.include?(arg.to_s)
  end

  # Returns options or nil if nometa param or X-Redmine-Nometa header
  # was set in the request
  def api_meta(options)
    if params[:nometa].present? || request.headers['X-Redmine-Nometa']
      # compatibility mode for activeresource clients that raise
      # an error when unserializing an array with attributes
      nil
    else
      options
    end
  end

  # Add by Tao
  def url_to_avatar(source)
    source = nil if source.kind_of?(String)
    get_avatar(source)
  end

  # Endof Tao's code

  def date_format_local(time)
    date = time.strftime("%Y年%m月%d日")
  end

  private

  def wiki_helper
    helper = Redmine::WikiFormatting.helper_for(Setting.text_formatting)
    extend helper
    return self
  end

  def link_to_content_update(text, url_params = {}, html_options = {})
    link_to(text, url_params, html_options)
  end

#added by nie
# Display watcher picture
  def show_more_watchers?(obj)
    if User.watched_by(obj.id).count > 6
      return true
    else
      return false
    end
  end

  def show_watcher_profile(obj)
    count = 0
    html = ''
    if User.watched_by(obj.id).count == 0
      html << (content_tag "span", l(:label_no_current_watchers))
    end
    for user in User.watched_by(obj.id)
      html << (link_to image_tag(url_to_avatar(user), :class => "avatar"), user_path(user), :class => "avatar", :title => "#{user.name}")
      count = count + 1
      if count >= 12
        break
      end
    end
    html.html_safe
  end

#display bid project
  def show_more_bid_project?(bid)
    if bid.projects.where('is_public = 1').count > 12
      return true
    else
      return false
    end
  end

  def show_bid_project(bid)
    html = ''
    if bid.projects.where('is_public = 1').count == 0
      html << (content_tag "p", l(:label_no_bid_project), :class => "font_lighter")
    else
      bid.projects.where('is_public = 1').take(12).each do |project|
        html << (link_to image_tag(url_to_avatar(project), :class => "avatar", :title => project.name), project_path(project), :class => "avatar")
      end
    end
    html.html_safe
  end

  def show_bid_fans_picture(obj)
    html = ''
    if obj.watcher_users.count == 0
      html << (content_tag "span", l(:label_project_no_follow))
    else
      obj.watcher_users.take(12).each do |user|
        html << (link_to image_tag(url_to_avatar(user), :class => "avatar"), user_path(user), :class => "avatar", :title => user.name)
      end
    end
    html.html_safe
  end

#display contest project
  def show_more_contest_project?(contest)
    if contest.projects.where('is_public = 1').count > 12
      return true
    else
      return false
    end
  end

  def show_more_contest_softapplication?(contest)
    if contest.softapplications.where('is_public = 1').count > 12
      return true
    else
      return false
    end
  end

  def show_contest_project(bid)
    html = ''
    if contest.projects.where('is_public = 1').count == 0
      html << (content_tag "p", l(:label_no_bid_project), :class => "font_lighter")
    else
      contest.projects.where('is_public = 1').take(12).each do |project|
        html << (link_to image_tag(url_to_avatar(project), :class => "avatar", :title => project.name), project_path(project), :class => "avatar")
      end
    end
    html.html_safe
  end

  def show_contest_project(contest)
    html = ''
    if contest.projects.where('is_public = 1').count == 0
      html << (content_tag "p", l(:label_no_bid_project), :class => "font_lighter")
    else
      contest.projects.where('is_public = 1').take(12).each do |project|
        html << (link_to image_tag(url_to_avatar(project), :class => "avatar", :title => project.name), project_path(project), :class => "avatar")
      end
    end
    html.html_safe
  end

  def show_contest_softapplication(contest)
    html = ''
    if contest.softapplications.where('is_public = 1').count == 0
      html << (content_tag "p", l(:label_no_contest_softapplication), :class => "font_lighter")
    else
      contest.softapplications.where('is_public = 1').take(12).each do |softapplication|
        html << (link_to image_tag(url_to_avatar(project), :class => "avatar", :title => project.name), project_path(project), :class => "avatar")
      end
    end
    html.html_safe
  end

  def show_contest_fans_picture(obj)
    html = ''
    if obj.watcher_users.count == 0
      html << (content_tag "span", l(:label_project_no_follow))
    else
      obj.watcher_users.take(12).each do |user|
        html << (link_to image_tag(url_to_avatar(user), :class => "avatar"), user_path(user), :class => "avatar", :title => user.name)
      end
    end
    html.html_safe
  end

#display fans picture
  def show_more_fans?(obj)
    if obj.watcher_users.count > 12
      return true
    else
      return false
    end
  end

  def show_fans_picture(obj)
    html = ''
    if obj.watcher_users.count == 0
      html << (content_tag "span", l(:label_no_current_fans))
    else
      obj.watcher_users.take(12).each do |user|
        html << (link_to image_tag(url_to_avatar(user), :class => "avatar"), user_path(user), :class => "avatar", :title => user.name)
      end
    end
    html.html_safe
  end

  # added by bai
  def show_more_participate?(obj)
    if obj.join_in_contests.count > 12
      return true
    else
      return false
    end
  end

  def show_participate_picture(obj)
    html = ''
    count = 0
    if obj.join_in_contests.count == 0
      html << (content_tag "span", l(:label_no_current_participate))
    end
    for temp in obj.join_in_contests
      html << (link_to image_tag(url_to_avatar(temp.user), :class => "avatar"), user_path(temp.user), :class => "avatar", :title => "#{temp.user.name}")
      count = count + 1
      if count >= 12
        break
      end
    end
    html.html_safe
  end

#end

# add by huang
  def show_watcher_list(user)
    html = ''
    count = 0
    for user in User.watched_by(user.id)
      html << (link_to image_tag(url_to_avatar(user), :class => "avatar"), user_path(user), :class => "avatar", :title => "#{user.name}")
      count = count + 1
      if count >= 12
        break
      end
    end
    html.html_safe
  end

# end

#added by william
  def get_fans_num(user)
    user.watcher_users.count
  end

#end

  def render_dynamic_nav
    home_link = link_to l(:field_homepage), {:controller => 'open_source_projects', :action => 'welcome'}
    home_link = "<li>" << home_link << "</li>"
    #bootstrap_render_dynamic_nav
    content_tag :ul, (home_link.html_safe+bootstrap_render_dynamic_nav)
  end

  def bootstrap_render_dynamic_nav

    # main_course_link = link_to l(:label_course_practice), {:controller => 'welcome', :action => 'index', :host => Setting.course_domain}
    # main_project_link = link_to l(:label_project_deposit), {:controller => 'welcome', :action => 'index', :host => Setting.project_domain}
    # main_contest_link = link_to l(:label_contest_innovate), {:controller => 'welcome', :action => 'index', :host => Setting.contest_domain}

    #course_all_course_link = link_to l(:label_course_all), {:controller => 'projects', :action => 'course', :project_type => 1, :host => Setting.course_domain}
    # course_teacher_all_link = link_to l(:label_teacher_all), {:controller => 'users', :action => 'index', :role => 'teacher', :host => Setting.course_domain}
    # courses_link = link_to l(:label_course_practice), {:controller => 'projects', :action => 'course', :project_type => 1, :host => Setting.course_domain}
    # projects_link = link_to l(:label_project_deposit), {:controller => 'projects', :action => 'index', :project_type => 0, :host => Setting.project_domain}
    #users_link = link_to l(:label_software_user), {:controller => 'users', :action => 'index', :host => Setting.user_domain}
    #contest_link = link_to l(:label_contest_innovate), {:controller => 'contests', :action => 'index'}
    #bids_link = link_to l(:label_requirement_enterprise), {:controller => 'bids', :action => 'index'}
    #forum_link = link_to l(:label_project_module_forums), {:controller => "forums", :action => "index"}
    #stores_link = link_to l(:label_stores_index), {:controller => 'stores', :action => 'index'}


    #school_all_school_link = link_to l(:label_school_all), {:controller => 'school', :action => 'index'}

    #osp_index link
    osp_index_link = link_to '项目列表', open_source_projects_path, {:onclick => "return user_trace_click_project_list('#{request.session_options[:id]}');"}
    #highchart link
    highchart_index_link = link_to '态势分析', {:controller => 'ossean_highcharts', :action => 'index'}#nav_dispaly_project_label
    #stackoverflow github recommendation link
    sta_git_match_link = link_to '项目推荐', {:controller => 'ossean_sta_git_matchs', :action => 'index'}
    nav_list = Array.new
    #nav_list.push(school_all_school_link) if @nav_dispaly_course_all_label
    #nav_list.push(course_all_course_link) if @nav_dispaly_course_all_label
    #nav_list.push(course_teacher_all_link) if @nav_dispaly_teacher_all_label

    #nav_list.push(main_project_link) if @nav_dispaly_main_project_label
    #nav_list.push(main_course_link) if @nav_dispaly_main_course_label
    #nav_list.push(main_contest_link) if @nav_dispaly_main_contest_label

    # nav_list.push(courses_link) if @nav_dispaly_course_label
    # nav_list.push(projects_link) if @nav_dispaly_project_label
    # nav_list.push(users_link) if @nav_dispaly_user_label
    # nav_list.push(contest_link) if @nav_dispaly_contest_label
    # nav_list.push(bids_link) if @nav_dispaly_bid_label
    # nav_list.push(forum_link) if @nav_dispaly_forum_label
    # nav_list.push(stores_link) if @nav_dispaly_store_all_label

    #osp_index
    # nav_list.push(osp_index_link) if @nav_dispaly_osp_index_label
    #highchart_index
    # nav_list.push(highchart_index_link) if @nav_dispaly_osp_index_label
    #sta_git_match
    # nav_list.push(sta_git_match_link) if @nav_dispaly_osp_index_label

    content_li = ''
    nav_list.collect do |nav_item|
      content_li << content_tag(:li, nav_item)
    end
    content_li.html_safe
  end

  def current_user
    User.current
  end

  def footer_logo(ul_class=nil, li_class=nil)
    logos = []
    logos.push(link_to image_tag('/images/footer_logo/nudt.png', :alt => "nudt"), "http://www.nudt.edu.cn/special.asp?classid=12")
    logos.push(link_to image_tag('/images/footer_logo/peking_eecs.png', :alt => "peking_eecs"), "http://eecs.pku.edu.cn")
    logos.push(link_to image_tag('/images/footer_logo/buaa_scse.png', :alt => "buaa_scse"), "http://scse.buaa.edu.cn/")
    logos.push(link_to image_tag('/images/footer_logo/iscas.png', :alt => "iscas"), "http://www.iscas.ac.cn")
    logos.push(link_to image_tag('/images/footer_logo/inforbus.png', :alt => "inforbus"), "http://www.inforbus.com")

    logos.collect! { |logo|
      content_tag(:li, logo.html_safe, :class => li_class.to_s)
    }

    content_tag(:ul, logos.join("").html_safe, :class => ul_class.to_s).html_safe
  end

  #格式化数字成XX万，XX亿等
  def short_num(arg)
    if arg>10000 && arg<100000000
      return (arg/10000).to_s+l(:label_unit_ten_thousand)
    elsif arg>100000000
      return (arg/100000000).to_s+l(:label_unit_one_hundred_million)
    end
    arg
  end
  
  #格式化数字成XXK，XXM等
  def short_num_eng(arg)
    if arg>1000 && arg<1000000
      return (arg/1000).to_s+"K"
    elsif arg>1000000
      return (arg/1000000).to_s+"M"
    end
    arg
  end  
  
  #gcm end

  def short_desc(desc, length)
    desc.gsub(/^(.{#{length}}[^\n\r]*).*$/m, '\1...').strip if desc
  end

  def show_project_urls urls
    s = ''.html_safe
    urls.split("|,|").each do |url|
      unless url.blank?
        s_temp = ''.html_safe
        url_infos = url.split("|:|")
        s_temp << link_to(url_infos[0], url_infos[1], class: 'project_url')
        s_temp = content_tag(:p, s_temp, :class => 'project_link')
        s << s_temp
      end
    end
    content_tag(:div, s, :class => 'project_links')
  end

  #查看项目来源站点
  def show_project_sources urls
    s = ''.html_safe
    urlsplits = urls.split("|,|")
    for i in (0..urlsplits.length-1)
      url = urlsplits[i]
      unless url.blank?
        s_temp = ''.html_safe
        url_infos = url.split("|:|")
        s_temp << link_to(url_infos[0], url_infos[1], :class => 'project_source', :onclick => "return user_trace_click_project_source_in_detail('#{url_infos[0]}','#{url_infos[1]}','#{i+1}','#{request.session_options[:id]}');")
        # s_temp = content_tag(:div, s_temp, :class => 'project_source')
        s << s_temp
      end
    end
    #content_tag(:div, s, :class => 'project_links')
    content_tag(:span, s)
  end


  def show_project_descriptions descs, length
    s = ''.html_safe
    unless descs.nil?
      index = 0
      descs.split("|,|").each do |desc|
        unless desc.blank?
          index = index + 1
          desc_infos = desc.split("|:|")
          s_temp = ''.html_safe
          #s_temp << content_tag(:span, desc_infos[0], class: 'project_source')
          #s_temp << ': '
          s_temp << content_tag(:span, (desc_infos[1].truncate(length) unless desc_infos[1].nil?), class: 'project_description')
          #s_temp = content_tag(:p, s_temp)
          s << s_temp
        end
        break if index == 1
      end
    end
    content_tag(:span, s)
  end
  
  def show_about_me descs, length
    s = ''.html_safe
    unless descs.nil?
      index = 0
      descs.split("|,|").each do |desc|
        unless desc.blank?
          index = index + 1
          desc_infos = desc.split("|:|")
          s_temp = ''.html_safe
          #s_temp << content_tag(:span, desc_infos[0], class: 'project_source')
          #s_temp << ': '
          s_temp << content_tag(:span, (desc_infos[0].truncate(length) unless desc_infos[0].nil?), class: 'project_description')
          #s_temp = content_tag(:p, s_temp)
          s << s_temp
        end
        break if index == 1
      end
    end
    content_tag(:span, s)
  end

end
